Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.

7.6

pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
6,250 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2001 Toyota Sienna engine problems

engine problem

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2001 Toyota Sienna Owner Comments

problem #4

Mar 222006

Sienna 6-cyl

  • Automatic transmission
  • 25,000 miles

A D V E R T I S E M E N T S

2001 Toyota Sienna le, purchased new, started having problems. "check engine" light came on when vehicle had approximately 25,000 plus/minus miles. Under warranty, Toyota dealership replaced the oxygen sensor without a charge. However, during this process, the "beep" signal you hear when locking-unlocking the vehicle with remote key was disappeared. This is also fixed under warranty. The "check engine" light came on again when the vehicle had about 35,000 miles. Toyota dealership said it is due to a dirty vacuum hose, they cleaned it with a charge little over $100. The next day the "check engine" light came on again, this time the Toyota dealership said they need to replace the charcoal canister (parts free, but we have to pay labor--about $100). This thing causes extreme mental distress, time, money, security etc.

- Auburn, AL, USA

problem #3

Apr 032003

Sienna 6-cyl

  • Automatic transmission
  • miles
After my engine registered "low oil", the mechanic found significant sludging. It was flushed and changed and then in <1000mi there was no oil again. Now Toyota says the leaks around the valves are due to my "neglect" in changing oil. I have the receipt from 4 mos ago for oil change. I also was told they would not consider paying for it because it was my lack of oil change that "caused" the sludging (despite my receipt) and that I needed all my oil change receipts for them to consider a claim (2 1/2 year old car.)

- Fayetteville, NY, USA

problem #2

May 012002

(reported on)

Sienna

  • Automatic transmission
  • miles
Consumer states that an indicator illuminated stating that there was an engine malfunction with transmission and stated consumer needed to stop driving immediately, dealer replaced the vehicle with a new one.

- Bensalem, PA, USA

problem #1

Oct 312001

(reported on)

Sienna

  • miles
While travel notice indicator light flashed dealer was contacted, and dealer replaced vehicle with new model. New vehicle had same problem with engine.

- Bensalem, PA, USA

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